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CVE-2026-23645

SiYuan Vulnerable to Stored Cross-Site Scripting (XSS) via Unrestricted SVG File Upload PUBLISHED

Description (CNA)

SiYuan is self-hosted, open source personal knowledge management software. Prior to 3.5.4-dev2, a Stored Cross-Site Scripting (XSS) vulnerability exists in SiYuan Note. The application does not sanitize uploaded SVG files. If a user uploads and views a malicious SVG file (e.g., imported from an untrusted source), arbitrary JavaScript code is executed in the context of their authenticated session. This vulnerability is fixed in 3.5.4-dev2.

Affected (CNA)

Vendor / productVersions
siyuan-note / siyuanaffected < 3.5.4-dev2

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.